Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Characterization of two representative exosome samples isolated from primary amnion cells. (A) Electron microscopy showing cup-shaped vesicles that have a size distribution of 30–100 nm (arrow indicates exosomes; scale bar represents 100 nm). (B) Western blot analysis showing the presence of exosome markers HSC70, CD81 and HSP70, as well as embryonic stem cell marker, Nanog, indicating amnion epithelial cell origin.
